Primary battery.



CHARLES E. nrrn, or BImLI'NGroN, NEW JERSEY.

Bummer BATTERY.

Specification of Letters Patent.

Patented Aug. 23 1910.

Application filed August 16, 1906. Serial No. 330,773.

To all whom it may concern:

l 3e it known that I, CHAnLEs- E. Hrrn, a citizen of the United States, residing at lgzuizle ngton, in the county of Burlington and a and useful Primary Battery, of which the following is a specification. My invention relates to improvements in I primary batteries.

vtery and means for increasing its life and My object is to provide an improved bateidciency.

This invention relates to a two-fluid cell lbattery, and comprises improved means of construction including the use of porous plates between the electro-negative and the electro-positive plates, in connection with partitions formed ofelectro negative plates. My invention comprises improved. means for coating the receptacle and improved means for covering the liquids to prevent evaporation. v

I Referring to the drawin -Figure 1 is a longitudinal vertical sectlon of a battery comprising my invention suitable for open circuit work. 2 is a plan ,viewof same.

throughout the several views.

' Similar numerals refer to similar parts The receptacle 3 is made of any suitable material such as wood, iron, hard-rubber or celluloid. In case thereceptacle is made of wood or iron it is desirable to line the same witha coating of insoluble non-conducting material 4. This receptacleis divided into a plurality of compartments by the carbon electrodes 5' seated in the box and sealed there'with, preferably by the coating of in- .soluble non-conducting material 4. In each compartment is placed a porous plate '6,

formedof baked earthenware, or other suitable porous material, also sealed in three edges tothe sides and bottom of the receptacle". The carbon electrodes are preferably coated'on one sideWith suitable insoluble 'non'i-conducting' material -leaving the other surface'active. I Each compartment formed by the carbon plates 5 is provided with a galvanic couple, one electrode of which beone side or active surface of said carbon ,1 plajte,-the other electrode 9 being a positive electrode is formed of zinc. The porous plate above referred to is'interposed between the-zinc electrode and the active surface of the carbon plate. Each cell is provided with two-liquids as follows: On the sideof this porous platecontaining the active surface of of New Jersey, have invented a new in-the adjoining" the carbon is provided a solution of ferric chlorid, while on the sidecontaining the zinc electrode is provided a'solution of sodium chlorid; these solutionsibeing of the same density. The zinc electrodes are-electrically connected and physically supported by the adjoining carbon electrode whose active face I cell. 'The immersed sur faces of the zinc electrode 9 and the carbon' electrode 5 which face each other, are preferably coated with the insoluble non-com ducting material 4. It is possible however, where the porous plate 6 is used to dispense ordinarily with the coating on the back of carbon plate 5. To prevent the'evaporation of the solutions above referred to, 'I cover the same with a non-volatile oil 12, such for instance as paraflin oil. To prevent any. electrical connection being formed by the oil between the above electrodes, I coat the porous plates 6 with a non-porous non-conducting material 10 extending from the top to slightly below the surface of the electrolyte. The simplest way of doing this is by glazing the upper end of the porous partition. I

also coat the zinc electrode on its active side with an insoluble non-conducting material from the top to slightlybelow the surface of the electrolyte as indicated at 11.

I find an extremely cheap, durable and eflicient coating of insoluble non-conducting material when used in connection with wooden receptacles is formed by first paint- .ing the interior of the receptacle with asphaltum paint and then pouring over'this melted sealing wax or resin. These mate rials when applied in the manner stated, become so assimilated that when hard they form analmost indestructible coating.

VVha't I claim is: I 1. In a primary battery, the combination of a receptacledivided into a plurality of separate cells by carbon plates suitably coatedon one side with impervious material,

each cell provided with a porous plate.

- 2. In aprimary battery, the combination of a receptacle divided into a plurality of separate cells by carbon plates suitably coated on one side with impervious material, each cell providedwith a galvanic couple, one electrode formed by one side of one of said carbonplates, and aporous plate interposed between-the electrodes of each galvanic couple.

. 3. In a primary battery, the combination of a receptacie divided.into a:,;plurality of separate cells'by carbon plates suitably coated on one side with mpervious material,

each cell provided with a galvanic couple, one electrode formed by one side of one of said carbon plates, a porous plate interposed between the electrodes of each galvanic couple, a sodium chlorid solution in each cell on one side of the porous plate and a ferric chlorid solution on the other side of the porous plate, V I

I a Primary battery, the combination of a receptacle divided into a plurality of separate cells by carbon plates suitably coat ed on one side with impervious material, each cell provided with a galvanic couple, one electrode formed by one side of one of said carbon plates, a porous plate interposed between the electrodes of each galvanic couple, a sodium chlorid solution in each cell on one Side of the porous plate and a ferric chlorid solution on the other side of the porous plate, the solutions being of the same density.

5, In a primary battery, the combination of a receptacle divided into a plurality of separate cells by carbon plates suitably coated on one side with impervious material, the active surface of each carbon plate formeeeaea ing one element of a galvanic couple, porous plates'introduced between the electrodes of each galvanic couple, a sodium chlorid solution in each cell on the side of the porous plate in which is the positive .electrode and a ferric chlorid solution on the other side of the porous plate, the said solutions being of the same density.

6. In a primary battery, the combination of a receptacle divided into a plurality of.

separate cells by partitions formed of carbon plates suitably coated on one side with impervious material, so that one surface of each carbon plate shall be electrically inactive, a zinc electrode in each. cell, a porous plate interposed bet-Ween the active surface of the carbon plate and the zinc electrode, and each cell being provided with a solution of sodium chlorid on the zinc electrode side of the porous'plateand with a ferric chlorid solution on the other side thereof, said solutions being of the same density.

CHA LES HITE.

Witnesses EUcnnn-ZmoLER, Man HOFMANN. 

